Martin married Maria Katharina Schmaltz on 13 May 1819 in Steinfeld, Pfalz, Bayern. Maria (daughter of Thomas Schmaltz and Jakobina Ott) was born on 17 Apr 1791 in Steinfeld, Pfalz, Bayern; died on 18 Apr 1861 in Steinfeld, Pfalz, Bayern. [Group Sheet] [Family Chart]

1. Maria Margaretha Gerhardt was born on 6 Apr 1820 in Steinfeld, Pfalz, Bayern; died on 6 Apr 1882 in Steinfeld, Pfalz, Bayern.
2. Martin Gerhardt was born on 20 Feb 1822 in Steinfeld, Pfalz, Bayern; died on 25 Dec 1831 in Steinfeld, Pfalz, Bayern.
3. Jakobina Gerhardt was born on 23 Dec 1825 in Steinfeld, Pfalz, Bayern; died on 26 Dec 1831 in Steinfeld, Pfalz, Bayern.
4. Michael Gerhardt was born on 29 Sep 1828 in Steinfeld, Pfalz, Bayern; died on 21 Jan 1856 in Steinfeld, Pfalz, Bayern.
5. Kaspar Gerhardt was born on 29 Sep 1828 in Steinfeld, Pfalz, Bayern; died on 5 May 1829 in Steinfeld, Pfalz, Bayern.

Matthias married Anna Maria Rock. Anna was born in 1760 in Steinfeld, Pfalz. [Group Sheet] [Family Chart]